KR100393950B1 - - Google Patents

Info

Publication number
KR100393950B1
KR100393950B1 KR10-2000-7013567A KR20007013567A KR100393950B1 KR 100393950 B1 KR100393950 B1 KR 100393950B1 KR 20007013567 A KR20007013567 A KR 20007013567A KR 100393950 B1 KR100393950 B1 KR 100393950B1
Authority
KR
South Korea
Prior art keywords
bit
signal
event
transmitted
digital signals
Prior art date
Application number
KR10-2000-7013567A
Other languages
Korean (ko)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/789,348 external-priority patent/US5267244A/en
Priority claimed from US07/789,731 external-priority patent/US5259003A/en
Priority claimed from US07/790,634 external-priority patent/US5278992A/en
Priority claimed from US07/789,737 external-priority patent/US5247702A/en
Priority claimed from US07/789,736 external-priority patent/US5212808A/en
Priority claimed from US07/789,292 external-priority patent/US5258995A/en
Application filed filed Critical
Application granted granted Critical
Publication of KR100393950B1 publication Critical patent/KR100393950B1/ko

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/31—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining coding for error detection or correction and efficient use of the spectrum
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M5/00—Conversion of the form of the representation of individual digits
    • H03M5/02—Conversion to or from representation by pulses
    • H03M5/04—Conversion to or from representation by pulses the pulses having two levels
    • H03M5/14—Code representation, e.g. transition, for a given bit cell depending on the information in one or more adjacent bit cells, e.g. delay modulation code, double density code
    • H03M5/145—Conversion to or from block codes or representations thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/12—Arrangements for reducing cross-talk between channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H04L25/4908—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes using mBnB codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/72502—Cordless telephones with one base station connected to a single line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

A method to encode two digital signals (USC-B, UBC-B) is disclosed. Each of the digital signals is characterized by a bit stream. An N bit block from the first signal is mapped to a unique M bit third signal where M is greater than N. Further, the number of 1's in the M bit third signal is less than M/2. The M bit third signal is transmitted in the event a bit from the second signal is 0, whereas the complement of the M bit third signal is transmitted in the event a bit from the second signal is 1.
KR10-2000-7013567A 1991-11-08 2000-11-30 KR100393950B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US07/789,348 US5267244A (en) 1991-11-08 1991-11-08 Method and an apparatus for establishing the functional capabilities for wireless communications between a base unit and a remote unit
US07/789,731 US5259003A (en) 1991-11-08 1991-11-08 Method of encoding two digital data signals
US07/790,634 US5278992A (en) 1991-11-08 1991-11-08 Method and apparatus for controlling transmission power of a remote unit communicating with a base unit over a common frequency channel
US07/789,737 US5247702A (en) 1991-11-08 1991-11-08 Method and an apparatus for establishing a wireless communication link between a base unit and a remote unit
US07/789,736 US5212808A (en) 1991-11-08 1991-11-08 Method and an apparatus for re-establishing wireless communication between a base unit and a remote unit
US07/789,292 US5258995A (en) 1991-11-08 1991-11-08 Wireless communication system

Publications (1)

Publication Number Publication Date
KR100393950B1 true KR100393950B1 (en) 2003-08-06

Family

ID=27560295

Family Applications (3)

Application Number Title Priority Date Filing Date
KR10-2000-7013567A KR100393950B1 (en) 1991-11-08 2000-11-30
KR10-2000-7013569A KR100393951B1 (en) 1991-11-08 2000-11-30
KR10-2000-7013568A KR100394162B1 (en) 1991-11-08 2000-11-30

Family Applications After (2)

Application Number Title Priority Date Filing Date
KR10-2000-7013569A KR100393951B1 (en) 1991-11-08 2000-11-30
KR10-2000-7013568A KR100394162B1 (en) 1991-11-08 2000-11-30

Country Status (4)

Country Link
JP (5) JP3264925B2 (en)
KR (3) KR100393950B1 (en)
AU (1) AU3128893A (en)
WO (1) WO1993009493A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404376A (en) * 1993-09-09 1995-04-04 Ericsson-Ge Mobile Communications Inc. Navigation assistance for call handling in mobile telephone systems
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US5619524A (en) * 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
JP3456037B2 (en) * 1994-12-13 2003-10-14 ソニー株式会社 Base unit for digital cordless telephone
JP4702443B2 (en) 2008-12-17 2011-06-15 ソニー株式会社 COMMUNICATION SYSTEM, COMMUNICATION METHOD, COMMUNICATION DEVICE, AND PROGRAM
JP5343753B2 (en) * 2009-08-03 2013-11-13 株式会社リコー Liquid discharge detection apparatus and ink jet recording apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742514A (en) * 1986-03-25 1988-05-03 Motorola, Inc. Method and apparatus for controlling a TDM communication device
WO1991000658A1 (en) * 1989-06-26 1991-01-10 Telefonaktiebolaget Lm Ericsson Method for synchronization in a cellular mobile radio system
US5001703A (en) * 1989-01-23 1991-03-19 Motorola, Inc. Spectrally efficient TDM duplex communication system
US5007050A (en) * 1987-03-27 1991-04-09 Teletec Corporation Bidirectional digital serial interface for communication digital signals including digitized audio between microprocessor-based control and transceiver units of two-way radio communications equipment
US5101406A (en) * 1989-08-24 1992-03-31 Telesystems Slw Inc. Wireless communications system
KR920022707A (en) * 1991-05-16 1992-12-19 원본미기재 Apparatus and method for synchronizing multiple remote transmitting and receiving stations
KR100210888B1 (en) * 1990-08-31 1999-07-15 에를링 블로메, 타게 뢰브그렌 Method and system distincting control channel time slot

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688210A (en) * 1971-07-16 1972-08-29 Larry W Fort Apparatus to protect a phase-locked-loop against loss of synchronizing signal
US4644560A (en) * 1982-08-13 1987-02-17 Hazeltine Corporation Intranetwork code division multiple access communication system
US4616364A (en) * 1984-06-18 1986-10-07 Itt Corporation Digital hopped frequency, time diversity system
JPH0761029B2 (en) * 1985-06-20 1995-06-28 ソニー株式会社 Transceiver
CA1249633A (en) * 1985-12-11 1989-01-31 Hideaki Morimoto Channel switching system
US4672657A (en) * 1985-12-17 1987-06-09 Motorola, Inc. Multichannel telephone system
US4789980A (en) * 1986-08-18 1988-12-06 American Telephone & Telegraph Company, At&T Bell Laboratories Switching techniques for FDM communication systems
NL8700175A (en) * 1987-01-26 1988-08-16 Philips Nv METHOD FOR TRANSFERRING INFORMATION BY CODE SIGNALS, INFORMATION TRANSMISSION SYSTEM FOR CARRYING OUT THE METHOD, AND TRANSMITTING AND RECEIVING DEVICE FOR USE IN THE TRANSMISSION SYSTEM.
CA1293999C (en) * 1987-08-24 1992-01-07 Osamu Ichiyoshi Earth station capable of effectively using a frequency band of asatellite
US5020094A (en) * 1987-12-23 1991-05-28 Rash Mark S Cordless telephone network
NL8803102A (en) * 1988-12-19 1990-07-16 Philips Nv METHOD FOR ESTABLISHING A DATA CONNECTION BETWEEN TWO TERMINALS AND A TERMINAL SUITABLE FOR THIS METHOD
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5128959A (en) * 1991-02-22 1992-07-07 Motorola, Inc. Variable bandwidth CDMA radio system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742514A (en) * 1986-03-25 1988-05-03 Motorola, Inc. Method and apparatus for controlling a TDM communication device
US5007050A (en) * 1987-03-27 1991-04-09 Teletec Corporation Bidirectional digital serial interface for communication digital signals including digitized audio between microprocessor-based control and transceiver units of two-way radio communications equipment
US5001703A (en) * 1989-01-23 1991-03-19 Motorola, Inc. Spectrally efficient TDM duplex communication system
WO1991000658A1 (en) * 1989-06-26 1991-01-10 Telefonaktiebolaget Lm Ericsson Method for synchronization in a cellular mobile radio system
US5101406A (en) * 1989-08-24 1992-03-31 Telesystems Slw Inc. Wireless communications system
KR100210888B1 (en) * 1990-08-31 1999-07-15 에를링 블로메, 타게 뢰브그렌 Method and system distincting control channel time slot
KR920022707A (en) * 1991-05-16 1992-12-19 원본미기재 Apparatus and method for synchronizing multiple remote transmitting and receiving stations

Also Published As

Publication number Publication date
JP2002186049A (en) 2002-06-28
JP2002185399A (en) 2002-06-28
JP2005073252A (en) 2005-03-17
JP3682058B2 (en) 2005-08-10
JPH07509590A (en) 1995-10-19
WO1993009493A1 (en) 1993-05-13
JP2002185999A (en) 2002-06-28
KR100394162B1 (en) 2003-08-09
AU3128893A (en) 1993-06-07
JP3264925B2 (en) 2002-03-11
KR100393951B1 (en) 2003-08-06

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A107 Divisional application of patent
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
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Year of fee payment: 6

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